Weighing-scale.



61H HAPGOOD.

,wmemme SCALE. APPLICATKON FILED JULY25 191 2- v Y Patented June 20,1916.

3 SHEETSSHEET 1- C. H. HAPGOOD.

WEIGHING SCALE.

APPLICATION HLED JULY 25, 1912.

. Patented June 20, 1916.

3 SHEETS-SHEET 2.

c. H. nAPeoon WEIGHIHG SEALS.

APPLICATION FILED .HJLYZS, 1912.

Patented June 20, 1916 3 SHEETS-SHEET 3- cannon n. Hareoon, or romeo, OHIO, Assisnon, BY mnsna ASSIGNMENTS, T

. rename seam oonrAnY, or TOLEDO, omo, a oonrona'rron or NEW JERSEY.

WEIGHING-SCALE.

Specification of Letters Patent. Patented June 20, 1916.

Application filed July 25, 1912. Serial No. 711,506.

Tb all whom it may concern:

Be it known that I, Gmnnxon H. llArooon, a citizen of the United States, residing at Toledo, in the county of Lucas and State of Ohio, have invented certain new and useful Improvements in lVeighing-Scales, of which the following is a. specification.

My invention relates more particularly to a scale designed and adapted to determine 19 the number of units or identical small articles in a group or mass without the labor of counting the same, and also for telling oil any definite desired number of. such articles bya single weighing operation. As examplesof the use of my invention it is pointed out'that customers in hardware or similar stores frequently desire to purchase a definite number of screws or other small articles, depending on the particular work in view,

39 rather than a definite weight of the same,

and'again, in factories, shops, etc., it'is of I advantage to be able to dispense from the stocleroom the number of small parts re quired for a certain piece of work or job.

prohibited by reason of the time consumed especiall y where the parts are very small,

- and quantities of stock are taken in excess of those demanded by the work, with the result that considerable material is wasted. Moreover, in taking stock and preserving the necnumber of such articles or units in any mass 7 orgroup, and telling off any desired number i by a single weighing. operation, thus prelhventing the waste of material referred to above and at the same time avoiding the loss ottime required to count the articles.

the accompanying drawings I have E llQYIl a preferred .embodimentof my in ventionand in the following specification have described the same in detail,'but it is to be mderstood that'though the embodiment de: scribed is my preferred form the disclosure thereof is for the purpose of exempliiication only and that my invention is not limited thereto but is defined in the following claims. I

Llteferringnow to the drawings, Figure 1 isga front elevation of a scale embodyin my All? invention, a casing inclosing certain oi the The counting of such parts is substantially operative parts, however, being shown in section; Fig. 2 is a fragmentary vertical section upon the line of Fig. 1 upon a plane at right angles to the plane of said figure and upon a somewhat enlarged scale at Fig. 3 is a plan view showing the casing in section and Fig. 4 is a detail partly in secpun and partly inelevation, to'be described a er.

The same symbols of reference are used to 85 identity the various parts of the. apparatus wherever they occur in the drawings.

In the preferred embodiment shown in the drawings my invention is applied to a platform scale of a well known type but its applicability to scales of other types will appear from the following description.

The base 5 of the scale and platform 6 are unmodified by my invention and the former supports by means of pillars 7-7, a casing 8, the side and end walls 9,10, 11, 12 of which are preferably of glass and the base or floor 13 of metal. The frontwall 9 of the casing is preterablypivoted at 14 to provide easy access to the interior. The platform 6 is supported upon the usual levers connected by the usual link 15, yoke 18 and knives 19, to the beam 16 which is pivoted upon the post 20 in the well known manner. The long arm of the beam is provided near its end with a knife 21 from which is suspended by means of the yoke 22 an arm 23 and pan 24 for a purpose which will appear. As shown more particularly 1 in Fig. 4on5 pan is hinged at 25 to the arm 23 to facilitate dumpiiw, but the pivotis so arranged that the pan normally maintains the horizontal position shown in Figs. 2 and i. The beam 16 is provided with the usual adjustable counterbalance 26 and small counterbalance 27 for accurate adjustment. At 28 is shown a poise which may be employed'for increasing the capacity of the scale, while at 29 I have provided. an extra beam with which a sliding poise 30 coiiperates either for the purpose of taking tare or further increasing the capacity of the scale. These described features of countcrbalances, sliding poises and tare beams are common in scalesot' this character and do not enter into my present invention.

Within the casing and parallel to the beam of the scale is arranged a pair of guides 31, 32, Which are supported in brack-- ets 33, 34:, arranged at opposite ends of the guides, and a carriage or sliding frame consisting of end pieces 36, 37 and connecting rods 38, 38 is arranged to slide upon said guides, the side members of the carriage being perforated at 39, 40 for the reception of the guide rods. The upper ends of the side members project forwardly and carry bearing blocks -L1, -12 at their ends and a beam 43 is fulcrumed upon the bearing blocks by means of the knives ll, 45 projecting from opposite sides thereof. Guards to, 46 extend over the knives and prevent their accidental displacen'ient from the bearing blocks. The beam 43 is arranged to extend at its forward end over the main beam of the platform scale and substantially at its end is provided with a pair of knives 47. i7, the edges of which are uppermost an engage bearing blocks is, 48 carried at the ends of the transverse bar 49 upon which the pan 50 is supported and hinged. A check bar 51 is rigidly connected to the cross bar 45) by a curved strip 52 which clears the lever end, and to a relatively fixed rod 53 projecting downwardly from a cross bar 54 on-the carriage by i check link At its opposite end the beam 43 is provided with an adjustable counterbalance 50 which may be so regulated as to bring the system into equilibrium when there is nothing in the scale pan. The check rod 51 is continued below the check link 55 and is screw threaded at its lower end to receive a yoke, 57 in which is mounted an anti-friction roller 63 which is arranged when depressed to rest or travel upon a bar or track ")9 carried by the main beam of the scale. Said bar is supported from a pair of brackets (30, (31

upon the main beam and extends parallel multiple scale or index carries three distinct sets of graduations one ot which runs from zero to 100, another from zero to 1000 and a. third from zero to 10,000, though as will be seen later these ranges of graduations may be different if desired; but the multiple scale or index is revolubly mounted in bearings at its ends and may be turned and ad.- justcd to bring any particular one of the series of grauluations into reading position and into cooperation with a linger 58 upon the yoke 57, a knurled knob (H being providcd at one end l'or this purpose. in order to secure delicate reading ol the movement of the main scale brain 1 have provided it with a point 00 which, when the scale is in perfect equilibrium alincs with a point 07 upon the stationary bracket 58 upon the frame. W

1 The use of jily scale may now be readily understood. l lle leverage between the platform 6 and the scale pan 21- is such that any weight placed upon the latter will counterbalance a weight one hundred times as great put upon the platform. In other words,- the leverage isas 1 to 100. The pan may be used in connection with the )latform to tell oft articles by the hundreds by putting into the pan :1 number'ot' the units or single articles equal to the number of hundreds desired, and then adding suitable quantities of the articles to the platform until equilibrium is reestablished, when the desired number of articles will be found to be upon the platform. It is to be noted that in this operation or in any operation in which no weight is on the sea e pan 50 of the traveling scale.

the latter in no wise affects the operation of the main scale since it is in equilibrium with the roller held above the track 5!) upon the main scale, out of contact therewith.

When it is desired to ascertain the number of equal units in a particular mass in which the entire number of units is less than one hundred, the mass is placed uponthe platform (3 and a single unit placed in the pan 50, the revoluble index or graduation cylinder being turned so that the 100 series of graduations is in operative position. The carriage bearing the auxiliary scale with the unit weight in the pan thereof is then adjusted along the beam of the main scale imtil equilibriun'i is again established or, in other words, until the weight of the unit, which is transferred by the auxiliary beam through the check bar, roller and track to the main beam. cmmterbalam-es the weight of the mass on the platform as shown by the registry of the pointers 60 and (37. By reason of its condition of equilibrium, the weight of the auxiliary scale does not in any manner affect the main beam whiclris influenced only by the weight of the unit transmitted to it through the check of the auxiliary scale. The leverage of the scale and the graduations of the series on the index cylinder are such that each graduation represents the multiple of any weight applied at the particular point of the grmluation on the beam that is to be found in a cmmterhalancing mass upon the platform. .For example, a weight applied at the graduation 5 will counterbalancc five times its weight upon the platform and a weight applied at the graduation 10 will ((HlIlttYllXlltlIlCE ten times its weight upon the platform, and so on. There lore. when the unit weight is put upon the pan of the auxiliary scale and its efi'ect is transferred to the beam, as before stated, and the auxiliary scale moved until the main scale is again in equilibrium, nu number on the series of graduations ndicated by the finger (33 will indicate the ratio of the weight upon the platform a to the weight in the auxiliary scale. pan 50 and hence, if the former is composed o l a mass of articles identical with that in the scale pain, the

number indicated on the series of graduations will be that of the articles on the platarticles upon the platform, using the thou--- sand series of graduation, ten similar articles must be put in the scale pan 5-0 and the weighing operation carried out as before (lescribed. By reason, however, of the multiplication of units and hence of the weight in the scale panof the auxiliary scale by ten, the balancing or breaking of the scale with the pointer of the auxiliary scale at any particular position upon the main scale beam, indicates a weight on the scale plat form ten times as great as if the scale balanced at'this point with but a single unit or article in the auxiliary scale pan. Again, if the number of articles on the platform 6 exceeds a thousand, the number of articles in the scale pan to counterbalance the same within the limits of the main beammust-be increased beyond 10 and therefore one hundred such articles or ten times the number employed with the one thousand series of graduation is put in the auxiliary scale pan and the ten thousand series of graduation is turned into position for cooperation with the pointer of the auxiliary scalefl Equilibrium is established as before by moving the auxiliary scaletoa suitable positionupon the main scale beam and the correct number'of articles can then be read upon the series of graduations.

It will nowbe obvious that my scale provides means for quickly and accurately ascertaining the number of units of a particular typein a mass which may be em ployed to advantage in any of the operations above referred to.

I claim:

1. A weighing scale having a beam, a receiver mounted adjacent and adjustable along the beam and adapted to transmit the weight of an article placed thereon to the beam, and means other than the beam for supporting and eounterbalancing the re ceiver.

' 2. A weighing scale having a beam, a reeeiver, counterbalance means for supporting said receiverindependently of the beam and adjustably movable along the same, the re ceiver being so related to the beam as to transmit the weight of anarticle placed thereon to the beam. p I

, 3. A Weighing scale having a beam, a counterbalanced,receiver vertically movable independently of the beam and mounted independently of the beam but adjustably movable along the same and adapted to transmit the weight of an article placed thereon to the beam.

4. A weighing scale having a. beam or. lever, an auxiliary beam adjustable along said main beam, a receiver on the auxiliary beam, and connections from the auxiliary to the main beam whereby the weight of material placed in the receiver is transmitted to the main beam.

5. A weighing scale having a mainbeam, an auxiliary beam mounted to travel along the main beam but supported independently thereof, means for counterbalancing the auxiliary beam, a receiver mounted upon the same, and connections from said receiver to the main beam whereby weight placed upon the receiver will be transmitted to the main beam. 0

6. A weighing scale having a main beam, guides extending parallel thereto, a car riage mounted upon the guides, and a counterbalanced receiver carried thereby, and connections between the receiver and the. main beam for transmitting the weight of an article placed m the former to the latter. 7. A weighing scale having a main beam, a guide extending parallel to said beam, a carriage upon said guide and a counterbalanced scale upon said carriage having a partnormally extending to a position above the main beam and adapted to be depressed into contact therewith by Weight placed in thd pan of said auxiliary scale.

'8. A weighing scale having a main beam, an auxiliary beam supported independently of and adjustably movable along the main beam and adapted to. engage the latter according to its point of adjustment and a load receiver upon the auxiliary beam.

' 9. A weighing scale comprising a main, beam and a counterbalanced auxiliary beam mounted adjacent and arranged to being moved longitudinally of the main beam to engage said-main beam at a variable distance from its fulcrum, and a load receiver mounted upon the auxiliary beam.

10. In a weighing scale in combination with the beam thereof, an auxiliary scale adjustable longitudinally of said beam and normally out of engagement thcrewitlnand connections adapted to be depressed into engagement with the beam of the main scale upon addition of weight to the auxiliary scale.

11 A weighing scale comprising a main beam, a guide parallel thereto, an auxiliary scale mounted upon the guide for adjustment along'the beam of the main scale, a receiver on the beam of the auxiliary scale located substantially above the beam of. the

, main scale and means depending from said lit receiver normally. held above the beam of the main scale, but adapted to depress the same when weight is added to the receiver. 12. In a Weighing scale comprising a main beam, an' auxiliary scale adjustable along the main beam and having a receiver overhanging the latter, a check rod depending from the receiver to apoint immediately above the main beam and adapted to be depressed into contact therewith and the check plate.

13. A weighing scale having a main beam, a track carried thereby, an auxiliary scale mounted to travel parallel to the main beam and extending over the latter, a receiver and means dependingv from the receiver into contact with said track.

14. A weighing scale having a main beam, a track carried thereby, an auxiliary scale mounted to travel parallel to the main beam and extending overthe latter, a

, receiver and means depending from the receiver into contact with said track, a

graduated member parallel to said track and main beam, and a finger on the auxiliary scale adapted to cooperate with the graduated member.

15. A weighing scale having a main beam, a platform 6 and a scale pan 24 of an auxiliary scale arranged to travel parallel to the main beamand having a goods receiver and means depending from the goods receiver to engage with the main 16. A weighing scale comprising abeam, a platform and a receiver 24 of an auxiliary scale adjustable along the main beam having a scale pan overhanging the latter, means on the auxiliary scale normally sus- .beam and operatethe latter.

pended above but adapted to engage the auxiliary scale with the main beam when the weight is placed upon. the pan of the former.

18. A weighing scale comprising a main beam, a track and a rotary graduation cylinder having a plurality of series of graduations mounted upon said beam, and an auxiliary scale mounted for travel along the beam and having a part adapted to be thrown into contact with the track and a finger cooperating with said graduation cylinder.

19. A weighing scalehaving a beam, a frame fixed in spaced relation to the beam, a load-receiver, a counterbalanced support for the receiver mounted upon the frame and adjustable longitudinally thereof and arranged to engage the beam at variable distances from its fulcrum to transmit to the beam the weight of an article placed in the load-receiver.

CLARENCE H. HAPGOOD.

Witnesses:

CLARENCE W. FESSENDEN, M. BALES. 

